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path: root/drivers/block/drbd/drbd_protocol.h
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Diffstat (limited to 'drivers/block/drbd/drbd_protocol.h')
-rw-r--r--drivers/block/drbd/drbd_protocol.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_protocol.h b/drivers/block/drbd/drbd_protocol.h
index 478c63d0b6f3..2da9104a3851 100644
--- a/drivers/block/drbd/drbd_protocol.h
+++ b/drivers/block/drbd/drbd_protocol.h
@@ -160,6 +160,8 @@ struct p_block_req {
* ReportParams
*/
+#define FF_TRIM 1
+
struct p_connection_features {
u32 protocol_min;
u32 feature_flags;